: The present invention relates to a mechanical passive stabilization system for marine application. More particularly, the mechanical passive stabilization system used in marine vessel comprises gimbal subassembly damper subassembly, antenna mounting subassembly, and mounting stand. Gimbal subassembly consists of a pair of revolute joint perpendicular to each other to provide freedom in roll and pitch plane, which is in turn connected to damper subassembly by means of spherical joint to dampen amplitude of oscillation. Antenna mounting subassembly provides mounting interface for antenna, and dummy antenna containing mechanism to adjust centre of gravity. Mounting stand provides the means of connecting all the subassemblies and total system to floating platform. This system has the flexibility to mount any type of antenna like helical, plate, etc. by means changing interface at antennae mounting subassembly. No. of Pages : 25 No. of Claims : 21 IN-DEL-2009-01082A